A Research Company Frequently Monitors Trends in the Use of Social

question 23

Essay

A research company frequently monitors trends in the use of social media by American Adults. The results of one survey of 1846 randomly selected adults looked at social media use versus age group. The table summarizes the survey results.
$\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\quad\text { Age Group }$
$\text { Uses Social Media }\begin{array}{|l|c|c|c|c|r|}\hline & 18-29 & 30-49 & 50-64 & 65+ & \text { Total } \\\hline \text { Yes } & 328 & 417 & 288 & 114 & \mathbf{1 1 4 7} \\\hline \text { No } & 67 & 125 & 265 & 242 & \mathbf{6 9 9} \\\hline \text { Total } & \mathbf{3 9 5} & \mathbf{5 4 2} & \mathbf{5 5 3} & \mathbf{3 5 6} & \mathbf{1 8 4 6} \\\hline\end{array}$

-Identify the variables and tell whether each is categorical or quantitative.

---

Definitions:

Marginal Propensity

The tendency of an individual or household to spend an additional dollar of income on consuming goods and services.

Simple Spending Multiplier

The ratio of a change in output to a change in autonomous spending that caused it, illustrating the impact of fiscal policy on total economic output.

Simple Spending Multiplier

A formula used in economics to determine the impact of a change in autonomous spending on the aggregate output, highlighting the amplification of initial spending through the economy.

Marginal Propensity

The ratio of change in an economic variable (such as consumption or saving) in response to a change in another (such as income), indicating the responsiveness of the variable.